Prime Keys are: T_REC is slotted 'ts_eq' using T_REC_index DB Index Keys are: T_REC_index All Keywords for series hmi.B_720s: T_OBS (time) Nominal time T_REC (time) Slot time T_REC_epoch (time) Time of origin T_REC_step (float) ts_eq step T_REC_unit (string) ts_eq unit DATE (time) Date_time of processing to disambiguate of ME VFISV magnetic field azimuth DATE_S (time) Date_time of generating Stokes data DATE_ME (time) Date_time of generating ME inversion data DATE__OBS (time) [DATE-OBS] DATE_OBS = T_OBS - EXPTIME/2.0 CADENCE (float) Repetition interval TELESCOP (string) For HMI: SDO/HMI INSTRUME (string) For HMI: HMI_SIDE1, HMI_FRONT2, or HMI_COMBINED WAVELNTH (float) For HMI: 6173.3 Angstroms CAMERA (int) For HMI: 1 (side camera), 2 (front camera), or 3 (both cameras) QUALITY (int) Quality index of data used to generate fd.B_720s (0x00000000) is good quality, (any nonzero value) should be investigated in data documentation QUAL_ME (int) ME Quality word QUAL_S (int) Level 1p Quality word QUALLEV1 (int) Logical OR on the bits of the level 1 Quality word BUNIT (string), per-segment BUNIT: physical units of each data segment ORIGIN (string) ORIGIN: location where file made CONTENT (string) CONTENT HISTORY (string) History of data COMMENT (string) Commentary on the data BLD_VERS (string) JSOC-build version number CALVER64 (longlong) Calibration Version HFLID (int) HMI_SEQ_ID_FRAMELIST HCFTID (int) HMI_SEQ_ID_FOCUS QLOOK (int) QLOOK: 0=definitive data, 1=quick-look data CTYPE1 (string) CTYPE1: HPLN-TAN (SOLARX) CTYPE2 (string) CTYPE2: HPLT-TAN (SOLARY) CRPIX1 (float) CRPIX1: location of the Sun center in CCD x direction CRPIX2 (float) CRPIX2: location of the Sun center in CCD y direction CRVAL1 (float) CRVAL1: x origin - center of the solar disk CRVAL2 (float) CRVAL2: y origin - center of the solar disk CDELT1 (float) Image scale in the x direction CDELT2 (float) Image scale in the y direction CUNIT1 (string) CUNIT1: arcsec CUNIT2 (string) CUNIT2: arcsec CROTA2 (float) CROTA2: INST_ROT + SAT_ROT CRDER1 (float) CRDER1: estimate of random error in coordinate x CRDER2 (float) CRDER2: estimate of random error in coordinate y CSYSER1 (float) CSYSER1: estimate of systematic error in coordinate x CSYSER2 (float) CSYSER2: estimate of systematic error in coordinate y WCSNAME (string) WCS system name DSUN_OBS (double) Distance from SDO to Sun center. DSUN_REF (double) Astronomical Unit RSUN_REF (double) Reference radius of the Sun: 696,000,000.0 m CRLN_OBS (float) Carrington longitude of HMI CRLT_OBS (float) Carrington latitude of HMI CAR_ROT (int) Carrington rotation number of CRLN_OBS OBS_VR (double) Velocity of the observer in radial direction. + is away from Sun OBS_VW (double) Velocity of the observer solar-westward. + in rough direction of Earth orbit OBS_VN (double) Velocity of the observer solar-northward (heliographic). + to north RSUN_OBS (double) Angular radius of Sun. Corresponds to arcsin(RSUN_REF/DSUN_OBS) AMBCODEV (string) Version of Disambig code AMBDOCU (string) Document for Disambig code AMBGMTRY (int) Flag determining whether to use planar or spherical geometry; 0 for automatic selection; 1 for planar; 2 for spherical. AMBNEROD (int) Number of pixels by which to erode map of above threshold pixels AMBNGROW (int) Number of pixels by which to grow eroded map AMBNPAD (int) Padding to use in potential field calculation AMBNAP (int) Width of apodizing window in potential field calculation AMBNTX (int) Number of tiles to use in x-direction for potential field calculation AMBNTY (int) Number of tiles to use in y-direction for potential field calculation AMBBTHR0 (double) Transverse field strength threshold at disk center for using simulated annealing AMBBTHR1 (double) Transverse field strength threshold at limb for using simulated annealing AMBSEED (int) Input random number seed AMBNEQ (int) Number of reconfigurations attempted at each temperature setting AMBLMBDA (double) Weighting factor between divergence and vertical current density AMBTFCT0 (double) Input factor to scale initial temperature AMBTFCTR (double) Input factor to reduce temperature DOFFSET (int) Field strength offset, a value added to the base threshold value of the magnetic noise mask that determines how the pixel is handled in disambiguation NOISEMASK (int) The magnetic field noise mask used as a base threshold value (1) indicates the use of a mask dependent upon spacecraft radial velocity (0) is a linear noise mask as a function of center to limb angle MASKINFO (string) Information of magnetic field noise mask shown; provides name and number of data series used for coefficient lookup table, i.e., hmi.lookup_ChebyCoef_BNoise[2833-2933] TINTNUM (int) Stokes : number of points used for the temporal interpolation SINTNUM (int) Stokes : number of points used for the spatial interpolation DISTCOEF (string) Stokes : path to the distortion coefficient table used to produce the data ROTCOEF (string) Stokes : path to the differential-rotation coefficient table used to produce the data POLCALM (int) Method used by the polarization calibration subroutine SOURCE (string) Input Stokes data series CODEVER0 (string) Version of the time-averaged IQUV code used to produce the data CODEVER1 (string) Version of the gapfilling subroutine used to produce the data CODEVER2 (string) Version of the temporal interpolation subroutine used to produce the data CODEVER3 (string) Version of the polarization calibration subroutine used to produce the data CODEVER4 (string) Version of VFISV code in the CVS context CODEVER5 (string) Version of Disambiguation code in the CVS context CODEVER6 (string) Version of HARP code in the CVS context INVCODEV (string) Version of VFISV code INVDOCU (string) Document for VFISV code INVITERA (int) Number of iterations of VFISV INVLMBDA (int) Number of wavelength points to compute synthetic line in VFISV INVLMBDF (int) Number of HMI filters INVTUNEN (int) Number of tuning positions of HMI filters INVSVDTL (double) SVD tolerance in VFISV INVCHIST (double) Chi-sqr stopping criteria in VFISV INVPOLTH (double) Polarization threshold in VFISV INVPJUMP (double) Percentage jump in VFISV INVLMBDM (double) First wavelength position in synthetic profiles, measured with respect to line center (in mA) INVLMBD0 (double) Central wavelength of HMI spectral line INVLMBDB (double) Wavelength shift - parameter proportional to Lande factor of spectral line (4.67*1D-13*lambda0^2*geff*1D3) INVDLTLA (double) Spectral sampling of synthetic spectral line in VFISV INVLMBDS (int) Number of wavelength points in subregion where synthetic line is calculated INVLMBMS (double) First wavelength position of sub-region where synthetic profiles are calculated, measured with respect to line center (in mA) INVLYOTW (double) Lyot filter FWHM in VFISV INVWNARW (double) FSR (full spectral range) of the Narrow-Band Michelson INVWSPAC (double) Wavelength spacing between the HMI filters INVINTTH (double) Intensity threshold in VFISV INVNFCTI (double) Noise Sigma factor for I INVNFCTQ (double) Noise Sigma factor for Q INVNFCTU (double) Noise Sigma factor for U INVNFCTV (double) Noise Sigma factor for V INVCONTI (int) Flag for continuum measurement INVWGHTI (double) Stokes I weight in the inversion INVWGHTQ (double) Stokes Q weight in the inversion INVWGHTU (double) Stokes U weight in the inversion INVWGHTV (double) Stokes V weight in the inversion INVSTLGT (string) Flag for stray light. No means that the stray light is not accounted for. INVFREEP (int) Flags for 10 free parameters : the order of variables must be found at COMMENT keyword INVFLPRF (string) Flag/Comment on filter-profile INVPHMAP (string) Flag/Comment on phase map INVVLAVE (double) Average of inverted V_los over processed pixels INVBLAVE (double) Average of inverted B_los over processed pixels INVBBAVE (double) Average of inverted field strength over processed pixels INVNPRCS (int) Numer of pixels processed INVNCNVG (int) Numer of pixels at which ME VFISV converged DATAVALS (int), per-segment Actual number of data values in images (pixels) MISSVALS (int), per-segment Missing values: TOTVALS - DATAVALS DATAMIN (float), per-segment Minimum value from pixels within 99% of solar radius DATAMAX (float), per-segment Maximum value from pixels within 99% of solar radius DATAMEDN (float), per-segment Median value from pixels within 99% of solar radius DATAMEAN (float), per-segment Mean value from pixels within 99% of solar radius DATARMS (float), per-segment Rms deviation from the mean value of pixels within 99% of solar radius DATASKEW (float), per-segment Skewness from the mean value of pixels within 99% of solar radius DATAKURT (float), per-segment Kurtosis of pixels within 99% of solar radius BKEYS1 (string) For future use BKEYS2 (string) For future use BKEYS3 (string) For future use BKEYI1 (int) For future use BKEYI2 (int) For future use BKEYI3 (int) For future use BKEYD1 (double) For future use BKEYD2 (double) For future use BKEYD3 (double) For future use Segments for series hmi.B_720s: link through MDATA Inclination link through MDATA Azimuth before disambiguation disambig fits 4096x4096 Flag for 180 degree change in azimuth (3 options) link through MDATA Field Strength link through MDATA LOS Velocity with Field link through MDATA Doppler Width link through MDATA Eta_0 link through MDATA Damping link through MDATA Continuum link through MDATA Gradient link through MDATA Filling Factor with Field link through MDATA Chi square link through MDATA Convergence flag and index link through MDATA Inclination_Err link through MDATA Azimuth_Err link through MDATA Field_Err link through MDATA VLos_Err link through MDATA Alpha_Err link through MDATA Field_Inclination_Err link through MDATA Field_azimuth_Err link through MDATA Inclination_Azimuth_Err link through MDATA Field_Alpha_Err link through MDATA Inclination_Alpha_Err link through MDATA Azimuth_Alpha_Err conf_disambig fits 4096x4096 Confidence index for disambiguation result info_map fits 4096x4096 Updated quality map confid_map fits 4096x4096 Updated confidence index Links for series hmi.B_720s: MDATA DYNAMIC hmi.ME_720s_fd10 ME